Kinetic energy and the Born-Green-Yvon method for fermion quantum fluids

Charles E Campbell, K. E. Kürten, E. Krotscheck

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

The Born-Green-Yvon (BGY) equations for two-body distribution functions of fermion-Jastrow many-body trial functions are derived using a diagrammatic method. Also derived are the Jackson-Feenberg and Pandharipande-Bethe expressions for the kinetic energy of this function in terms of partial two- and three-body distribution functions. Simple approximations for these three-body functions are then used in the BGY equations and the kinetic energies and are solved for the ground state of liquid He3.

Original languageEnglish (US)
Pages (from-to)1633-1654
Number of pages22
JournalPhysical Review B
Volume25
Issue number3
DOIs
StatePublished - Jan 1 1982

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